enzing-er



(No Model.) 2 Sheets-Sheet 1.

L. A. ENZINGER; I

FILTER-PRESS. 110.393.6333. Patenteov.27,188.

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i In F B n Model.) 2 Sheets8heet 2.

A. ENZINGER. FILTER PEP-$8.

4 *No. 393 ,633.' Patented Nov. 27, 1888:.

PATENT OFFICE.

LORENZ ADALBERT ENZINGER,

OF WoRMs, nEssE, GERMANY.

FILTER-PRESS.

SPECIFICATION forming part of Letters Patent No. 393,633, dated November 27, 1888.

Application filed June 3Q, 1:481

Surial Nu. .'-l3,0l7. (Nu model.) Patented in England April 25, 1e87, No. 5.982; in Germany April 26, 1881', No. 42,891; in France April 29, 1:157, No. 183,195; in Belgium April :9, 1887, No. 77,213; in Sweden Mayil.

1887, No. 988; in Italy May 18, M87, XLIII, 112; in Norway ma 20,1557, No. 538; in Spain July 13,1887,Nu. 11,158; in Austrialluugary November ti, Iss7; No. 19,090 and.

To all whom it may concern:

Be it known that I, Lom-zsz Answerer Es- ZINGER, a subject of the Grand Duke of Hesse, and residing at VOIIDS, in the Grand Duchy of Hesse, Germany, have invented new and useful Improvements in Filter-Presses, (for which Letters Patent have been granted to main the following countries, to wit: Great Britain, April 25, 1887, N 0. 5,982; Germany, April 26, 1887, No. 42,894, France, April 29, 1887, No. 183,195; Belgium, April 29, 1887, No. 77,263; Sweden, May 3, 1887, No. 988; Italy, May 18, 1887. No. 112. Volume XLIII; Norwa May 20, 1887, No. 538; Spain, July 1 3, 18 7, No. 11,158; Austria-Hungary, November 6, 1887, respectively ii-umbered19,090 and 44,748, and Lrnxembnrg, February 2, 1888, N o. 955,) whereof the following is a specification. 7

My invention relates to filter-presses or filtering apparatuses composed of a number of juxtaposed frames and offilteringwalls placed between the same; and its object is to provide more efilcient means than heretoforeemployed in like apparatuses for allowing theair contained in theframes or entering thereinto with the liquid to be filtered to ese'ape,and whereby air may be caused to pass into the frames, when at the end of an operation the remaining liquid is drawn oil. For this purpose the frames and the filtering-walls are inserted betwetn two chambers located at the ends of the apparatus, and they are provided with four holes each-two at the top and two at the bottomthe said holes forming, when the parts are put together, four channels. One of the lower channels and one of ,t-he up'pcr ones communicate with the interiouspace of the'altcrnate frames fand with the-chamber designed to receive turbid liquor, so that while the liquor flows through the lower channel into the frames the air passes through the upper channel from the frames to the said chamber. The other two channels communicate with the remaining frames and with the chamber, for filtcred liquor, and they serve, respectively, to conduct filtered liquor and air from these frames to the said chamber. Both chambers are'providcd with cocks for the outlet of the air collecting therein.

No. 44,748,and in Luxmubnrg February 1, tries, No. 955.

()n the annexed two sheets of drawings an apparatus involving, my improvements is rep- .rcscn'ted by Figure liu perspective view, the frames and the filtering-walls being separated from caclrother a certain distance and only a limited number thereof being shown. Figs. 2 and 3 are respcctivcl y a front view and a verticalsection on line 1 2 of one of the frames, and Fig. 4 is a perspective viewof a composite filtering-wall arranged to be employed in ,the improved filtcr' press.

two at the top-which, when the parts are pressed together, form four channels-the two lower ones. a b. and the two Moreover, the chamber Q has two orifices, 'i and m, registering. respectively, with the channels b and 0, whereas the chamber Rhas the orifices k and 1:, (shown in dotted lines,) which are opposite to the ends of the channels a and d. In each of the frames M the hole forming part the'hole forming part slit,.l, with a passage, ends of the grate-bars,

of the channel 0 by a t, running along at the and conscqucntly with Figs. 2 and 3,) so that the turbid liquor introduced into the chamber Q will pass from the same through the channel b to the frames M, and that the air will escape from the latter to the chamberQ through the channel a. In a slit, 0, with the channel a, with the channel d,for allowing the filtered liquor to pass from all the frames 0 through the channel a and the air through the channel d upper. ones, 0 d.

the spaces between the bars, (scc' especially In Fig. 1, Q is the chamber into which the v of filtcring'paper there are four holestwo at the bottom and of the channel b communicates by a slit, Laud like manner the inner space ofcach of the cud frames, 0, is put in communication by a t and by a slit, 1,95

to the chamber R. The slits o and, are exactly-analogousto the slits Z and t, (Shown in Figs. 2 and 3'.) The frames 0 are also analogous to the frame M, the former, however, being turned end for end when placed inthe press, so as to bring the slits o-and r in communication with the channelsa and d,res pcctas shown by the drawings. Under these con ditions the frames, the filtering-walls, and the chambers may be supported by and shifted from one side to the other upon and between four bars, 0, connecting together the standards A of the apparatus. The said frames, walls,

and chambers are pressed together by meansof the head-plates K and the screw J wilh hand-wheel On the chambers Q and R are mounted the glass cylinders f, in which the air coming from the frames M and O collects, so that the-quantity thereof present can always he observed. r

h h are the cooks by which the air is blown oil, u u drain-cocks, and g g pressure-gages.

Iftheapparatus is'to be put into operation, the filtering battery, composed of the frames, the walls, and the chambers, is tightened up, as stated, and the cocks h h, u u, and p areclosed. Turbid liquor is then admitted by the cock 0 to the chamber Q, while at the same time the cock h is slowl opened until theliquorhas risen in the glass the said cock being thereupon closed. During this operation the liquor runs through the orifice iand the channel 1) into the framesM and displaces the air,'which passes through the slits l and the channel a into'the upper part of the chamber Q. Thecock h'-ofthe chamber R being thenslowl y opened,theliquorpasses from the frames M through-the neighboring filtering walls or sheets '1 on both sides thereof, and arrivesin purified state i n the frames 0, whence it runs through the slits o and the channel a to the chamber It, while the air present inthe said frames escapes by the slits r, the channel induction of air.

d, the chamber R, and the cock h. The course of the liquor'and the air is indicated in the drawings b arrows. finished, a 1 spaces filled with turbid liquor may be emptied by the cock u, those containin g the filtrated liqupr by the cook a, the cocks h and h being at the same time opened for the Thus all losses of liquor otherwise apt to occurat the end of an operation are avoided. r

In case the filtering material consists of sheets of paper, which are apt to be torn when there is a pressure of a liquid on one side-and air or gas on the other, suchsheets, when applied in the described apparatus, are secureagainst rupture, as with ordinary care no accumulation of air or gas adapted to endanger the paper will occur in the frames of the apparatus.

The filtering-walls T, eons'istingof sheets of paper or cloth, may be replaced by other walls-such, for instance, asthose shown by Fig. 4-which consists each of a frame, N,closed on both sides by sheets P of wire'ganze faced at the edges with inde'r-rubber frames P, the 'said frame N being provided. with an orifice,. q,-to he closed by a screw'plug forljillingrit with cellulose or other suitable filtering mate;

, rial.

I claim as my inrention--- 1 In a filter-press, the combination, with each other, of a number offrames, M, for turbid liquor, a number of frames, 0, for filtered liquor alternating with the former, filteringwalls interposedbetween the frames M and O, and

two chambers, Q and R, arranged at the ends of the apparatus, the frames M andO and the When the filtration isv filtering-walls having each two holes at the bottom and two at the top, which, when the said partsare put together, form the two lower channels, a b, and the two upper ones, a d, the channels 6 and c communicating with the inner space of the'frames M and .the chamber Q, while the channels a and tLeommunieate' with specified.

the inner spaceof the frames 0 and the chamber R, snbstautiallyas and for the purpose.

In testimony whereof I have hereunto set my hand in the presence of two s ubscribingwit- LORENZ Amtnnirr rumors.

Witnesses:

- HENRY'SPRINGMA rm,

F. voN Veneers. 

